Wimax 5g l13 vs Docomo Hr02 with rakuten Unlimited sim data

Hello everyone,

I just want to have a feedback from you if someone use one of these two devices.

I saw a lot of these device on mercari for around 10000yens and was wondering if it will work great with a rakuten sim data.

I've been using my phone on hot-spot since a month already, I don't want to burn the battery anymore..

Is there any difference between this two?
I believe they use the same band so maybe the brand doesn't really matter?

Thank you and have a good day 😎